The cheese, known as pule, is white, crumbly and made from donkey's milk. It runs over $500 per pound, in part because one pound of the cheese requires over three gallons of milk. It's produced in Djokovic's native Serbia, and he plans to use it in his soon-to-open chain of restaurants. (Too much to hope that the restaurants are named "Donkey Cheese"?)

Pule recently received the distinction of the "world's most expensive cheese." Created at one farm in one town in Serbia, the cheese is derived from milk on one of Serbia's most well-known natural reserves. Djokovic purchased the farm's entire year's supply.

"It will save a lot of effort having to deal with various restaurants, with only one customer buying the lot we don't have to worry too much about salesmen," said Slobodan Simic, manager of the farm. "It is a great vote of confidence as well in what we do here." Simic recently told Reuters that the cheese could fetch as much as $2,900 a pound if it were sold on the open market, but it's sold privately at around $576 a pound to promote the farm's conservation efforts.

Congrats to Djokovic for cornering the donkey cheese market. We look forward to Donkey Cheese Sticks and Donkey Cheese Omelets showing up on his menus very soon.